The following figure shows the movement of solutes across a plasma membrane in the direction indicated by the arrows. This movement across the membrane

Question

The following figure shows the movement of solutes across a plasma membrane in the direction indicated by the arrows.  This movement across the membrane

Quizplus · Accepted Answer

The movement of solutes across the plasma membrane in the direction indicated by the arrows is occurring by diffusion. Diffusion is the spontaneous movement of particles from an area of higher concentration to an area of lower concentration, driven by the concentration gradient. This does not require a direct input of cellular energy and does not occur independently of carrier proteins or by osmosis.

The Following Figure Shows the Movement of Solutes Across a Plasma